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3 years ago

Please save the program with the name ‘triangle.c’

Computers and Technology

1 answer:

konstantin123 [22]3 years ago

7 0

Answer:

1. #include <stdio.h>

2. int main()

3. {

4. int k;

5. int j;

6. int i;

7. int array[7];

8. array[0] = 1;

9. for (i = 1; i < 9; ++i)

10. {

11. array[i] = array[i-1]*2;

12. for (j=0; j < i; ++j)

13. {

14. printf("%d ",array[j]);

15. }

16. for (k=i-2; k > -1; --k)

17. {

18. printf("%d ", array[k]);

19. }

20. printf("\n");

21. }

22. return 0;

23. }

Explanation:

From line 1 to 3 we start the main function
From line 4 to 7 we declare the variables that we are going to be using throughout the program including an array of 7 positions
On line 8 we initialize the array with one to match the sequence
From line 9 to 10 we create a for loop to create the 9 sequences of numbers
On line 11 we assign values to the array by taking the previous value and multiplying it by 2, this way we can create the sequence 1,2,4,8,32...
From line 12 to 15 we print the ordered array
From line 16 to 19 we print the inverse array minus one
On line 20 we print an enter

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2 years ago

Write a C++ program that computes the area and perimeter of aspecified shape

leonid [27]

<u>C++ program that computes the area and perimeter of a specified shape</u>

#include <iostream>

#include <cmath>

using namespace std;

void rectangle() //Defining function for rectangle

{ int h,w;

cout << "Enter height: ";

//taking input

cin >> h;

cout << "Enter width: ";

cin >> w;

cout << "The perimeter of the rectangle is " <<2*h+ 2*w << " and the area is " <<h*w << endl; //printing output

}

void triangle() //Defining function for triangle

{ int s1,s2,s3,h,w;

cout << "Side 1: "; //Taking input

cin >> s1;

cout << "Side 2: ";

cin >> s2;

cout << "Side 3: ";

cin >> s3;

cout << "Enter the height: ";

cin >> h;

cout << "Enter the base length: ";

cin >> w;

cout << "The perimeter of the triangle is " <<s1+s2+s3 << " and the area is " <<(.5)*w*h << endl; //printing output

}

void circle()//Defining Function for the circle

{

const double p=3.14;

int w;

cout << "Enter the radius: "; //Taking input

cin >> w;

cout << "The perimeter of the circle is " << p*2*w << " and the area is " << p*w*w<< endl; //printing output

}

int main() //driver function

{

int s;

cout << "Enter the shape (1 for rectangle,2 for triangle, 3 for circle): ";

//Asking user for the shape

cin >> s;

switch(s) //checking which shape it chooses

{

case 1:

rectangle(); //If user type 1 ,then calling rectangle function

break;

case 2:

triangle(); //If user type 2 ,then calling triangle function

break;

case 3:

circle(); //If user type 3,then calling circle function

break;

default:

cout <<"Enter valid choice for shape"; //If user type other than 1,2,3

}

return 0;

}

<u>Output</u>

Enter the shape (1 for rectangle,2 for triangle, 3 for circle): 1

Enter height:2

Enter width: 3

The perimeter of the rectangle is 10 and the area is 6

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4 0

3 years ago

4. If d is a double variable with a value of 7.5, which of the following statements results in a (1 point) value of 7 being assi

nignag [31]

Answer:

int x = (int)d

Explanation:

(int) means the largest integer value smaller than <value>.

which is 7.

Only the first choice has the correct syntax.

The second choice sets an int as a double, which does not work.

The third one shows int as a function, d as a parameter, which is not allowed, as int is a keyword in java

For the last choice, you are setting x to 7.5 not 7.

So int x = (int)d is correct.

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3 years ago

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Hoochie [10]

Answer:

1, bottom 2,shift, 3,Ctrl

Explanation:

i got it right.

8 0

3 years ago

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